erik_squires
Responses from erik_squires
| Why are low impedance speakers harder to drive than high impedance speakers Not sure anyone cares about this, but I thought I would chime in with more information now. In general, many good drivers are available in 4 and 8 Ohm versions. When this is true, the 4 Ohm is usually 3 dB more sensitive. The low impedance causes ... | |
| Center channel questions It can be partly the speakers you are using, and partly lack of the center. A good center adds significant clarity. I used to be on the "phantom center is good enough" camp, but after experimentation and research I am no longer. A center is notice... | |
| Class D Technology So the ICEPower and Hypex modules have a built-in buffer, but the configuration is such that manufacturers can bypass it and implement their own if they want to. Without the buffer the input impedance is very low for line level. This allows manufa... | |
| Top resistors @pbnaudio Fusible and flame-proof resistors are quite common in the electronics industry but usually in an amplifier, not a crossover. :) The idea of the former is just like you would expect. When power is exceeded they are guaranteed to open, ins... | |
| Best Capacitors for Crossovers Hi Ozzy, You should take these questions over to the DIYAudio forum where there are lots of speaker builders who would help you, or Parts Express Tech Talk. Plus you can post pics and schematics and stuff there too so it's easier to share your pr... | |
| Power supply hum transmitted to loudspeakers Hi Normie,Noise is a problem with all active devices. It's caused by several things, but what can make it audible is high gain in the system, along with high efficiency speakers. For some reason traditionally preamps are made with WAY too much gai... | |
| Getting good sound from MacBook via DAC. Try running on batteries. From several comments, the problems seem to come from the switching power supplies. | |
| Oppo 105D versus Benchmark Dac 2 ? I think a better difference would be with Mytek or Schiit. Both have very good Redbook playback. | |
| Why are low impedance speakers harder to drive than high impedance speakers @mapman Ahem, please see the example I posted, above. :) The drop at resonance is no lower than Re. :) I'm sure @Atmashpere will chime in, but depending on the amp, it's really the difference between the peaks and Re that makes a tube amp misbehav... | |
| Why are low impedance speakers harder to drive than high impedance speakers Because of these properties of amplifier and speaker systems: Amplifiers have a non-zero output impedance Voltage is proportional to impedance in a series circuit. Speakers usually present complex impedance, with a range of impedance magnitude and... | |
| Frequency equalizing -- Left and right channels separately or together Well, your speakers don’t necessarily have the same bass response, especially if you place them asymetrically. And yeah, a RS SPL meter is not the way to go. I use OmniMichttp://amzn.to/2iPK8PObut I make loudspeakers so it may be a bit much for ma... | |
| Far Cheaper than a $3000 Music Server Build your own server. I did a 2 TB Xubuntu build for $700 or so. I was already running Logitech Media Server. http://inatinear.blogspot.com/2016/08/ubuntu-mytek-brooklyn-dsd-setup-guide.htmlLMS is great, but Squeezelite has the limitation of only... | |
| Question on hearing I find the matching of music to the system is very different. There are a number of recordings I can enjoy in the car I can’t listen to at home. :)Especially music from the 80’s and 90’s. Notable exceptions are Pink Floyd. I think this has a lot t... | |
| Piano out of Tune? @frogman I'm very grateful for such a complete analysis! First, I was worried AudioGon would decide this was too off-topic for the board. Second, I was worried that no one on Audiogon could actually play music or knew enough to tell. :D :D :D I'm ... | |
| Piano out of Tune? Thanks! |